(A) 1mm in diameter
(B) 0.5 to 1.0 micrometer in diameter
(C) 2mm in diameter
(D) 2 micrometer in diameter

(A) Alcoholic beverages
(B) Fermented dairy products
(C) Breads
(D) All of the mentioned

(A) Condenser lens
(B) Magnifying lens
(C) Objective lens
(D) Eyepiece lens

(A) Cyanobacteria, Fungi and Viruses
(B) Viruses
(C) Cyanobacteria
(D) Fungi

(A) Edwin John Butler
(B) Ferdinand Cohn
(C) Robert Koch
(D) Antoni van Leeuwenhoek

(A) Study of molecules that are visible to human eyes
(B) Study of animals and their family
(C) Study of organisms that are not visible to naked eyes
(D) Study of microscope